In the first ceremony following the scandal that rocked the industry, stars arrived at the red carpet leading to the Dolby Theatre wearing pins for the Time's Up movement, that was triggered by the mogul's downfall.

The Oscars - who won what? (Image: PA)

Opening the show, Kimmel said: "The Academy, as you are no doubt aware, took action last year to expel Harvey Weinstein from their ranks.

"There were a lot of great nominees but Harvey deserved it the most.

"The Academy kicked him out and after they did I was curious so I looked it up, the only other person to be expelled was a character actor called Carmine Caridi, in 2004, who was kicked out for sharing screeners.

"Carmine Caridi got the same punishment as Harvey Weinstein for giving his neighbour a copy of Seabiscuit on VHS.

"What happened with Harvey and what is happening all over was long overdue.

"We can't let bad behaviour slide anymore, the world is watching us and we need to set an example and the truth is if we are successful and if we can work together to stop sexual harassment in the workplace, if we can do that, women will only have to deal with harassment all the time at every other place they go."